Automatic warp beam adjustment



C. A. COCK AUTOMATIC WARP BEAM ADJUSTMENT Jan. 5, 1932.

'Filed July 7, 1930 4 Sheets-Sheet 1 ba Q:

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Jan. 5, 1932 C. A. COOK AUTOMATIC WARP BEAM ADJUSTMENT Filed July '7, 1930 4 Sheets-Sheet 2 a deA. 603% i l @407 M Jan. 5, 1932. c. A. COOK AUTOMATIC WARP BEAM ADJUSTMENT Filed July 7, 1950 4 Sheets-Sheet 3 m H. K. @W bx as R W C a. V @m WU m m a o w w u. H Q PM; mm m N 0L MN a RN Jan. 5, 1932. c. A. cook AUTOMATIC WARP BEAM ADJUSTMENT 4 sneet-sheet 4 Filed July 7, 1930 Cltl'ozump Patented Jan. 5, 1932 PATENT OFFICE CLYDE A, cook, or :rnrnnson, NEW JERSEY ,AU'roMAr ro WARP BEAMADJUSTMENT Application filed. Ju1y'7, 1930. serial 'No. 466,212.

It is desirable in the operation of looms, to

throwing the elevating mechanism into and out of .gear as the-warp beam rises and its diameter diminishes, whereby to maintain the level of the warp ends. p 7 I While the drawingsillustrate a'preferred embodiment of the invention, itis to be understood that-in adapting the means to meet specificneeds and requirements,;the' design may be varied and changesin the minor details ofconstruction may beresorted to within the scope of the invention as claimed, without departing from the spirit thereof.

For a full understanding of the invention and the merits thereof, reference is to be had .tothe following description and the drawings heretoattached, in which: v I

Figure 1 is anzend view'of a conventional form ofloom, showing more clearly the warp beam and mechanism associated therewith for tain thewarp ends at a predetermined levelg. Figure 2 is a fragmentary view in, side elevation.

Figure 3 is a fragmentarysectional View on the line 88' ofFigure l, looking 'to'the automatically elevating the beam -tomain-' view on the Figure 6 is an enlarged detail sectional view on the line 66 of Figure 2.

Figure 7 is an enlarged detail sectional view on the line 77 of Figure 6, looking to the-left as indicated by the arrows, showing theratchet mechanism for imparting an intermittent rotary movement to the elevating mechanism; p

Figure 8 is a detail side View of a portion of the loom, the mounting for the warp beam and the automatic control for throwing the elevating mechanism into and out of gear.

Figure 9 1s anenlarged perspective view of the warp beam mounting, the guide therefor, 2

and the br'acketsfor the warp beam control.

Corresponding and like parts are referred to in the following description and designated in the several views of the drawings by like reference characters.

= Side members of the loom frame 1 are provided with ribs 2 which constitute guides for the warp beam mounting. This mounting comprises a pair of elevators or jacks 3 formed in a side with a groove or'ch'annel'l to snuglyreceive the guide ribs 2. The sides of the ribs 2 are undercut to receive overhanging portions of the elevator or jack 3 bordering upon'thegroove or channel 4. In this manner, the elevators or jacks 8 are retained in place and directed in their vertical movement. Transverse grooves 5 are formedin the upper ends of the elevators 3 and receive the journals of the warp beam 6. Elevating or jack'sc'rews 7 engage the elevatorsB, as shown most clearly in Figure l of the drawings,-'to effect a vertical movementthereof to elevate thewarp beam 6 as the warp threads are drawn therefrom, tomaintain the warp ends at the predetermined level. The lower ends ofthe elevating screws 7 engage worm gears 8 disposed in boxes 9 secured to the floor. Covers 10 'closevthe gear boxes 9. A transverse shaft 11 is mounted in the gear boxes '9' and receives a worm12 adjacent each end and which is confined between the boxes 9 and their covers 10. Rotation of the shaft 11 effects a corresponding rotary movement of theelevating screws 7 through the instrumentality of the worm gearing 8 and 12. The lower ends of the elevating screws 7 are tapered and stepped in the boxes 9, as shown most clearly in Figure 7 of the drawings.

That portion of the elevatingscrews 7 engaging the worm gears 8 is square, as indicated most clearly in Figure 6 of thedrawings. The construction is such as to admit of lifting the elevating screws 7 to clear the worm gear's 8 and boxes 9 so that the elevators or 1acks 3 may be independently adjusted when placing warp threads upon the warp beam, v

v A ratchet wheel 13 is mounted upon the shaft 11 and a dog 14 coacts therewith to impart an intermittent rotary movement to the shaft 11 and the elevating s rows 7.

i 15 is forked at one end and carries the .dog

members of the rod 15 is extended and adjustablyccnnected to a pivoted upright 18. The rod 17 is connected to an eccentric 19 fitted to the usual crank or cam shaft 20 of the loom. The cam 19 is split'and formed'with a clamp 21 which admits of fitting it to the shaft 20. The loom is operated by means of power applied to the shaft 20 and through the between the lever and nut. 30v

eccentric 19 the rod 17 is reciprocated and im- 7 parts a corresponding movement to the rod 15 and thedog 14 pivoted thereto. This results in imparting an intermittent rotary movement to theshaft 11 and the elevating, screws 7, whereby the elevators 3 and warp beam'6 are adjusted vertically to maintain the of the warp ends.

Contact between the. dog 14 and ratchet wheel 13 is automatically controlled by means of the warp beam. A control lever 22 is pivoted upona rod 23 projecting inwardly from asbracket' 24 attached to the loom frame 1. The control lever 22 carries a roller 25 which engages the top portion of the warp beam 6. A stout wire or light rod 26 forms connecting means between the control lever 22 and the dog 14. The connection 26 passes loosely through the. lever 22and receives a nut 27 and: spring 28, the latter being interposed Adjustment of the nut 27 determines the contact between the dog 14 and the ratchet wheel 13. As

shown most clearly in Figure 1 of the drawingspthe roller 25 engages and rests upon the warp threads achacent the endof the warp beam 6 and as the diameter decreases level by withdrawal of the warp threads from the warp beam, the roller 25 lowers and, in consequence, the connection 26 moves downward and permits the dog 14 to engage the teeth of the ratchet wheel 13 and impart an intermittent rotary movement to the shaft 11 and elevating screws 7 geared thereto. This results in a lifting of the jacks 3 and warp beam 6 to bring the warp ends to the predetermined level, with the result that the control lever 22 is moved upward and effects disengagement of the dog 14 from the ratchet wheel 13. This operation is automatic and when the level of the warp ends lowers, the elevating mechanism automatically operates to lift the warp beam and bring the warp ends to the predetermined level.

Each' of the elevators or jacks 3 is providedwith wings 29 and 30 to which brackets A rod 31 and'32 are attached. The brackets 31 extend inwardly and downwardly and ter minate in horizontal extensions 33 which are slotted to receive the. lower ends of cords 34 which are wound around pulleys 35 fast-t0 the ends of the warp beam 6. The lower ends of the cords 34 are knotted to prevent withdrawal through the slots of the extensions 33. Weights 36 may be placed upon the horizontal extensions 33. A lever 37 is .pivotedatone end to each of the brackets 32 and receives weights 38 at its opposite end. Acord 39 is attachedat one end to each of the levers 37 and its opposite end portion passes aroundthe pulley 35 in a reverse direction to the cord 34. F or a dead weight, the lower ends of the cords 34 are knotted and slipped into the slots of the horizontal extensions 33 with the knots therebelow to prevent upward disengagement of. the cords from the extensions; When balanced weights 36 are employed, the cords are engaged therewith and the weights rest upon the horizontal extensions 33. The bracket 32provides for theuse of lever weights. It isobserved that the weighting system for the warp beam is carried by the elevators or jacks 3, thereby moving with the warp beam mounting and preventing imperfections in the weaving. a

It is observed that the level of the warp ends is maintained automatically without any attention on the part of the loom fixer. The construction also admits of either one of the jacks 3 being independently adjusted as occasion may require. The elevating mechanism is automatically controlled from the warp beam and is thrown out of action when the warp ends occupy the predetermined level and is automaticallythrown into action when the level of the warp ends lowers. this being effected by the control levers 22 in the manner stated; I

' hat is claimed is:

1. In a loom, the combination with the warp beam, of meansactuated from a moving part of the loom and controlled from the warp beam for automatically elevating the warp beam to maintain the warpends at a predetermined level.

2. In a loom, the combination with the warp beam, and a mounting therefor comprising independent jacks, of means for adjusting the jacks separately, and means actuated from a moving part of the loom and controlled from the warp beam for simultaneously adjusting both of the jacks to elevate the warp beam to maintain the warp ends at a given level. V

3. In a loom, the combination with the loom frame and warp beam, of a warp beam mounting comprising independent jacks, interfitting guide means between the jacks and loom frame holding the jacks to a rectilinear path in their vertical movement, and means actuated from a moving part of the loom and controlled from thewarp beam to adjust the jacks and elevate the warp beam to maintain the warp ends at a predetermined level.

4. In a loom, the combination with the warp beam and a mounting therefor adjustable vertically, of operating means actuated from a moving part of the loom to effect automatic adjustment of the warp beam mounting to maintain the warp ends at a given level, said operating means including a ratchet mechanism controlled from the warp beam for intermittent actuation of the operating mechanism.

In a loom, the combination with the warp beam and a mounting therefor adjustable vertically, of operating means for ef-" fecting automatic vertical adjustment ofthe warp beam mounting, the same including power transmitting rods adjustably connected and actuated from a moving part of the loom, and a ratchet mechanism connected with said rods and controlled from the warp beam for effecting vertical adjustment of the mounting by intermittent stages.

6. In a loom, the combination with the warp beam and a mounting therefor adjustable vertically, of operating means adapted to be actuated from a moving part of the loom to effect automatic adjustment of the warp beam mounting, said operating mechanism including separable parts, and control means actuated from the warp beam to automatically throw said separable parts into and out of engagement.

7. In a loom, the combination with the warp beam and adjustable mounting therefor movable vertically, of operating means for effecting automatic adjustment of the warp beam mounting, and control means" actuated from the warp beam for automatically throwing said operating mechanism into and out of action.

8. In a loom, the combination with the warp beam, a mounting therefor adjustable vertically, and operating means for effecting adjustment of said mounting and including a ratchet an ddog,of a control member actuat'ed'from'the warp beam, and ayieldable connection between the control member and the saiddog; V v

-9. In a loom,-the' combination with the warp beam,"a mounting. therefor adjustable vertically, and operating means for effecting automatic adjustment of said mounting including a ratchet and dog, a control member adapted tobe actuated fronrthe warp beam, a connection between said control member and dog, an adjustable stop on said connection, and a spring between the adjustable stop and the control member.

10. In a loom, the combination with the warp, beam, a mounting therefor adjustable vertically, and operating means for efieob, ing automatic adjustment of the mounting able connection between the control lever and said dog.

11. In a loom, the combination with the Warp beam mounted for vertical adjustment,

of operating means actuated from a moving part of the loom for effecting automatic adjustment of said beam, and control means actuated from the warpbeam for automatically throwing the adjusting mechanism into and out of gear.

12. In a loom, the combination of the warp beam, a mounting therefor including separate jacks receiving the journals of the warp beam at theirupper ends, elevating screws in threaded engagement with said jacks, a transverse shaft, gearing between said shaft and the elevating screws, the screws being detachable from said gearing to admit of independent adjustment of the acks, and means actuated from a moving part of the loom controlled from the warp beam to impart an intermittent rotary movement to the said shaft and elevating screws.

13. In a loom, the combination of the warp beam, vertically adjustable j aoks therefor, elevating screwsfor the jacks, gear boxes having the elevating screws stepped therein, wormv gears in said boxes and having the elevating screws detachably engaged therewith,

IOU

a transverse shaft mounted in the gear boxes,

ing part of the loom and controlledfrom the warp beam for imparting an intermittent rotary movement to the said transverse shaft. 14. Ina loom, the combination of the warp beam, elevating acks therefor, adjusting screws for the jacks, a transverse shaft, gearing between the transverse shaft and adjustmg screws, operating means for imparting. an intermittent rotary movement to the transverse shaft from a-- moving partfof the 100m and including a ratchet Wheel and c0- acting dog, a control lever in contact with the warp beam and actuated thereby,- adjustable and yieldable connecting means between the control lever and dog, and tensioning means for the warp beam mounted upon the elevating jacks and adjustable therewith and with the warp beam to insure the Weaving of a cloth free from imperfections.

In testimony whereof I atfix my signature.

CLYDE A. COOK.- [L. s.] 

